Methods of maximum-likelihood tomography

Zdenek Hradil; Jaroslav Rehacek

doi:10.1117/12.566368

26 October 2004 Methods of maximum-likelihood tomography

Zdenek Hradil, Jaroslav Rehacek

Proceedings Volume 5535, Developments in X-Ray Tomography IV; (2004) https://doi.org/10.1117/12.566368
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

Maximum-likelihood estimation is an important method of inference. Recently, maximum-likelihood techniques have been successfully applied to absorption tomography of weakly as well as strongly absorbing materials. In this presentation we generalize this method to the phase contrast tomography, which combines the phase estimation and tomography. Unlike the standard phase fitting followed by the filtered back-projection, the developed procedure gives reasonable results also when applied to very noisy data or data consisting of only a few measured projections. The proposed method could therefore considerably shorten measuring times in applications involving low intensity beams, such as phase tomography with low intense X-ray beams or neutrons.

Citation Download Citation

Zdenek Hradil and Jaroslav Rehacek "Methods of maximum-likelihood tomography", Proc. SPIE 5535, Developments in X-Ray Tomography IV, (26 October 2004); https://doi.org/10.1117/12.566368

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